<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<link rel='stylesheet' href='../css/iftest4.css'/>
<script src='../js/iftest4.js'></script>
</head>
<body>
<h1>IF Example4</h1>
<form method="post" action='' name='frm'>

	<input type='number' name='su1'/><br/>
	<input type='text' name='oper' size='1'/><br/>
	<input type='number' name='su2'/><br/>
	<p/>
	<input type='button' value='확인' id='btn'/>
	
</form>
<script>iftest4();</script>
</body>
</html>